View clinical trials related to Precancerous Conditions.
Filter by:This study aims to find a correlation between fish protein intake and other dietary habits and colorectal premalignant lesions in healthy volunteers. It also aims to describe gut microbial profiles for each dietary pattern, in order to elucidate the role of fish intake in cancer prevention.
Colonoscopy is the gold standard for the diagnosis and resection of preneoplastic lesions, allowing the prevention of colon cancer. A colonoscopy is more efficient with proper preparation of the colon, as it allows for a higher rate of adenoma detection and cecal intubation. In routine practice, up to 30% of colonoscopies are poorly prepared and 11% of patients do not show up for their appointment. Adenomas not visualized in the initial colonoscopy due to poor preparation reached 68% and the rate of undetected cancers was 66.7%. A proper colon cleanse is conditioned by different factors; among them, failure to comply with the diet and take laxatives poses 5 times the risk of having a deficient colon preparation. The purpose of our study is the design and implementation of an app that facilitates the preparation of colonoscopy and evaluates its impact on compliance with diet and laxative intake.
The goal of this observational study is to analyze somatic mutations in the genome of normal kidney cells from patients affected by kidney cancer predisposition syndrome Von Hippel Lindau (VHL) and compare the mutation rates observed in these patients and in individuals not affected by the disease. The main questions the study aims to answer are: - Do kidney cells from VHL patients mutate more than cells from control individuals during adult life? - What mechanisms favor somatic mutation occurrence in the genome of normal kidney tubule cells? Participants will donate one blood sample and multiple urine samples. Urines will be used for kidney cell isolation, followed by cell culturing and genetic analyses. Urine samples will be collected once a year for 3-5 years. Sample collection will occur during the yearly screening program that each patient undergoes at the hospital. In case patients undergo surgical treatment of kidney tumors, samples discarded from surgery (tumor and normal kidney adjacent to tumor) will be collected and subjected to genetic analyses. Researchers will compare the number and types of mutations found in tumors and normal kidney cells from VHL-disease patients with those found in normal kidney cells from control individuals, to see if somatic mutation rates are increased in VHL-disease patients during aging.
To investigate the use of self-administered artesunate vaginal pessaries as treatment for cervical precancer in low and middle-income countries (LMIC). The central hypothesis of this study is that self-administered intravaginal Artesunate will be safe, and result in a clinical response among both HIV-positive and HIV-negative women with cervical precancer in LMICs.
This investigation was carried out to analyze and compare the salivary paxillin levels between oral premalignant and malignant lesions (OPMLs), OSCC and the healthy controls in order to assess its potential role as a biomarker of oral cancer aiming for early diagnosis and better prognosis of OSCC. Methods: Forty-five patients, ranging in age from thirty to seventy-five, were divided into three groups: fifteen patients with OPMLs (lichen planus, leukoplakia), fifteen patients with OSCC, and fifteen controls who were in general well. Paxillin was identified in saliva samples by using an ELISA kit.
Aim: The current study targets linking serum and salivary dipeptidyl peptidase-4 with oral squamous cell carcinoma and comparing it with potentially malignant lesions and control to validate dipeptidyl peptidase-4 as a diagnostic marker for early detection of oral cancer and to reveal its possible role in carcinogenesis. Methodology: A total of 45 patients were recruited and subdivided into 2 groups: Group I: 15 patients having oral squamous cell carcinoma. Group II: 15 patients with potentially malignant lesions (leukoplakia and oral lichen planus) compared to 15 systemically healthy participants having no oral mucosal lesions acting as a control group (Group III). Serum and whole unstimulated salivary samples were collected from all participants to evaluate dipeptidyl peptidase level in different groups using enzyme linked immune-sorbent assay (ELISA) kit. ROC analysis was done to reveal area under the curve, sensitivity, specificity and diagnostic accuracy of DPP-4 among different groups.
Primary: - To measure the rate of perioperative vulvovaginitis in a population of patients in central VA with non-malignant vulvar disease who require surgical excision - To correlate the rate of vulvovaginitis with rate of wound cellulitis and incisional breakdown in patients undergoing SPV/WLE for vulvar disease We will use a vulvovaginal swab to test for the most common causes of vulvovaginitis - bacterial vaginosis (BV), trichomonas, and candida. The swab will be collected preoperatively on day of surgery. The outcome will be evaluated by phone call to patient at 1 week after surgery and physical exam at the postoperative visit between 4-6 weeks.
The aim of study is to evaluate the sensitivity and specificity of using mobile phone photographs versus conventional clinical examination as a screening tool for early detection of oral cancer.
In this study, we proposed a prospective study about the effect of the automatic surveillance system on surveillance rate of patients with gastric premalignant lesions. The enrolled patients were divided into group A with intelligent surveillance system, group B with manual reminder, and group C with natural state. The surveillance among the three groups will be compared.
The goal of this study is to characterize and validate a signature of circulating biomarkers in plasma, associated with the presence of gastric preneoplasia in patients with preexisting gastric lesion compared with a control group. For this purpose: - Patients with pre-existing gastric lesions will be invited to participate to this study. If they are willing to participate an additional blood sample (10mL) will be collected at the time of the blood collection performed during their routine care - Healthy subjects will be invited to participate to constitute the control group. If they are willing to participate a blood sample (10 ml) will be drawn specifically for this study